![Large silver chamber with white cone shaped rocket nose on yellow scaffold in center](https://www.nasa.gov/wp-content/uploads/2023/03/156437main_image_feature_648_ys_full.jpg)
The Space Power Facility
When it was constructed in 1969, the Space Power Facility (SPF) was the world's largest vacuum chamber. It stands more than 122 feet high, 100 feet in diameter and provides a vacuum environment for the study of space propulsion.
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https://www.nasa.gov/image-detail/space-power-facility/
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